Wall with ground anchored thereto



J1me 1957 w. B. PRITCHETT WALL WITH GROUND ANCHORED THERETO Filed 0ct.' 14, 1953 IN VEN TOR.

- a true plane surface.

United States Patent 2,795,130 WALL WITH 'GRGUND ANCHORED THERETO Welby 1B. Pritchett, Madisonville, Ky. Application October 14, 1953, Serial No. 385,938

1 Claim. (Cl. .72-101) This invention relates to the class of building construction and more particularly to a novel combination toggle bolt and adjustable ground anchor.

In securing a plaster ground or the like to a hollow tile or block wall or other similar type of building construction, adjustments for the uneven surface of the masonry wall must be made in order that the plaster may attain Therefore, the primary object of this invention resides in the provision of means for holding objects, such as plaster grounds, at adjusted and even distances from a wall or like surface so that the finished surface may be planar.

The construction of this invention features a novel starshaped anchor collar which is threadedly secured on a bolt having a novel retainer for engaging the interior surface of a building block or like construction element. The novel retainer includes a threaded ring secured on the bolt carrying a substantially U-shaped member having teeth for digging into and biting the inner surface of the wall to provide a rigid and adjustable spacing element. The novel star-shaped retainer is of greater dimensions than the plaster ground utilized to thereby permit the rotation of the anchor collar with the plaster ground already received on the toggle bolt.

Still further objects and features of the invention reside in the provision of a combined adjustable plaster ground and toggle bolt that is strong and durable, simple in construction and manufacture, capable of being readily utilized for the purpose set forth on walls, ceilings and the like, yet which is inexpensive to manufacture thereby permitting ready utilization in the building trades.

These, together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure l is a sectional detail view illustrating the deviceas operatively installed;

Figure 2 is a vertical sectional view as taken along the plane of line 2-2 in Figure 1 and illustrating the starshaped anchor collar in greatest details;

Figure 3 is a vertical sectional view as taken along the plane of line 3-3 in Figure 1 illustrating the locking nut which is threadedly secured on the bolt and which engages one surface of the building block;

Figure 4 is a sectional detail view illustrating the manner in which the retainer bites into the interior surface of the building block so as to properly anchor the toggle bolt;

Figure 5 is a vertical sectional view as taken along the plane of line 5-5 in Figure 4 illustrating the construction of the retainer in greater detail;

Figure 6 is a horizontal sectional view as taken along the plane of line 6-6 in Figure 5 illustrating the U- shaped configuration of the retainer; and

Figure 7 is a side elevational view of the toggle bolt in a collapsed position prior to utilization thereof.

With continuing reference to the accompanying drawings wherein like reference numerals designate similar parts throughout the various views, reference numeral 10 generally designates a masonry wall or like supporting structure formed from ihollow tiles or blocks having the conventional openings 12 therein. In order to secure a plaster ground 14 in spaced relationship relative to the building blocks 10 it is necessary to use some additional mechanism. The device comprising the present invention generally indicated by the reference numeral 16 is utilized to hold the plaster ground 14 in spaced relationship relative to the block 10 and is adjustable to compensate for any irregularities in the surface of the wall or support 10.

In utilizing the present invention a passageway 18 of restricted size is formed in the wall 10 opening into the selected of the apertures 12. Then, the toggle bolt 16 is inserted therein. The toggle bolt 16 is preferably threaded throughout its entire length and has threadedly secured thereon a substantially star-shaped element forming an anchor collar 20 which is adapted to engage the plaster ground 14. As can be readily seen from an inspection of Figure 2, the dimensions of the anchor collar 20 are greater than that of the height of the plaster ground 14 thereby permitting rotation of the anchor collar 20 with the plaster ground in position. The use of the star-shaped configuration provides means whereby the anchor collar 20 can be readily engaged. Also threadedly secured on the toggle bolt 16 is a locking nut 22 which as is shown in Figure 3 is preferably of square shape but which may be of other suitable shape as may be desired, the square shape being satisfactory to permit ready rotation of the nut 22. Also threadedly secured on the toggle bolt 16 is a retainer 24 which includes a substantially U-shaped ring 26 which is internally threaded and which carries stub shafts 28 and 30 which are adapted to extend through aligned apertures 32 and 34 formed in the U-shaped member 36 having legs 38 and 40 provided with teeth 42 and 44 thereon of the shape that can be best seen in Figures 4 and 7 for biting into the interior surface of the wall 10. The U-shaped member 36 is rotatably mounted on the stub axles 28 and 30 and, therefore, when the entire retainer 24 has been received through the aperture 18 the U-shaped member 36 will pivot to a lower position as is shown in Figure 4. It is, of course, within the concept of the present invention to provide a comparatively thin and narrow tool for pivoting the U-shaped member 36 relative to the bolt 16 to engage the bolt with a horizontal surface when using this device in constructing a ceiling or like structure.

It is to be noted that the bolt 16 is provided with a head 46 of greater diameter than any other part of the bolt. This insures against the bolt pulling through the plaster ground or the like.

Since from the foregoing the construction and advantages of this adjustable ground and toggle bolt are readily apparent, a further description is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claim.

What is claimed as new is as follows:

A building construction including a wall having a plaster ground and a toggle bolt holding said plaster ground in an adjusted spaced relationship to said wall, said toggle bolt comprising a bolt having a head, said head engaging said plaster ground, an anchor collar threadedly secured on said bolt engaging the ground, a locking nut threadedly secured on said bolt and engaging one surface of said wall, and a retainer threadedly secured on said bolt engaging another surface of said wall, said anchor collar having a greater diameter than the width of the ground, said anchor collar being star shaped, said retainer comprising an internally threaded ring threadedly secured on said bolt and including'a substantially U-shaped member having spaced feet having aligned apertures therethrough, stub shafts on said ring rotatably mounted in said apertures, and teeth on said feet for biting into the said surface of said Wall, said apertures being disposed at one end of said U-shaped member while said teeth are disposed on said feet at the other end of said U-shaped member, the end of said bolt opposite said head of said bolt engaging said U-shaped member between said feet to prevent I0- tation of said U-shaped member away from said wall and to force said teeth into engagement with said wall as said locking nut is screwed against said wall.

References Cited in the file of this patent UNITED STATES PATENTS 953,720 Stoeser Apr. 5, 1910 1,386,202 Peterson Aug. 2, 1921 1,599,745 Cinnamond Sept. 14, 1926 1,855,931 Washburn Apr. 26, 1932 1,944,787 Dusablon Jan. 23, 1934 

